This has nothing to do with paleoartists, copyrights, or even strictly
dinosaurs, so forgive me. But here is a link to a series of rather
remarkable photos of animal camouflage. Many, but not all, are
invertebrates --- there are several avian maniraptorans and one mammal.
The maniraptorans are interesting because one shows camouflage adapted
to resting on the ground. We always see dinosaurs with bright patterns
but this shows that it ain't necessarily so.